Apparatus for the propulsion of cars by electrical energy



(No Model. 1 2 Sheets-Sheet 1.

A.'H. BAUER. APPARATUS FOR THE PROPULSION 0F CARS BY ELECTRICAL ENERGY. No. 378,864. Patented Mar. 6, 1888.

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(No Model.) 2 Sheets"Sheet 2.

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APPARATUS FOR THB'PROPULSION 0F CARS BY ELECTRICAL ENERGY. No. 378,864. Patented Mar. 6, 1888.

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UNITED STATES FFICEO PATENT APPARATUS FOR THE PROPULSION 0F CARS BY ELECTRICAL ENERGY.

SPECIFICATION forming'part of Letters Patent No. 378,864, dated March 6, 1 888.

Application filed J nne 13, 1887.

To all whom. it may concern).-

Be it known that I, ALEXANDER H. BAUER, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Apparatus for the Propulsion of Cars by Electrical Energy; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention, which relates more particularly to devices for the propulsion and regulation of the speed of one or more cars by electrical energy, has for its object to provide means for efficiently using the current in large or small quantity, whereby the power applied to the driving mechanism is varied accordingly, thus allowing the regulation of speed by means of suitable switches.

A further object of my invention is to arrange the electromotor and intermediate driving-gear on framing attached to the axles of the car, thereby allowing the car-body to move freely on its springs.

My said invention consists, essentially, of a suitable framing secured to the axles of any ordinary car, said framing carrying an electromotor whose armature-shaft is connected by intermediate driving mechanism with one or both axles. The electromotor is wound in two or more (preferably three) separate and distinct sections or multiple arcs, each section being connected with its proper terminals on a suitable switch, by means of which one or more of the sections of the motor can be thrown in circuit with a suitable primary or secondary (storage) battery, located, preferably, underneath the seats of the car.

The construction and arrangement of the various parts of my invention I will now proceed to point out and describe, reference being bad to the accompanying drawings, in which- Figure 1 is an inverted plan view of a car provided with apparatus embodying my invention, the motor being connected with only one axle; Fig. 2, a side elevation of the same; Fig. 3, a cross-section of a car, showing arrangement of the battery; Fig. 4, a diagram Showing electrical connections between battery, motor, and brake-magnet; and Fi 5, an in- Serial No. 241,141. (No model.)

verted plan showing motor connected with both axles.

As shown in said drawings, at A A, Figs. 1, 2, and 5, I arrange a framing consisting of two beams extending from one axle to the other and connected by suitable cross-beams and braces, and resting on or suspended from suitable bearings on each axle, said framing carrying an electromotor, M, whose armatureshaft M is parallel to the axles of the car and at right angles to the beams A, and is supported in and passes through bearings secured to said beams. Both ends of the armature shaft are provided with pinions P P, which mesh into counter-gears P P, secured to a counter-shaft, N, mounted in bearings attached to the beams A A. This counter-shaft carries a pinion, 1?", located at any convenient point of said shaft. This pinion l? in turn meshes into a large gear, P, secured to an axle.

Through the above-described intermediate gearing the motion of the armature-shaft is communicated to an axle of the car, thereby propelling said car in either direction, as determined by the position of the brushes of the motor. In Fig. I Show the armature-shaft of the motor connected by similarly-arranged intermediate gearing with both axles.

- The electromotor M is wound in two or more separate and distinct sections or multiple arcs, each section being connected with its proper terminals on a switch, S, hereinafterdescribed.

The battery is preferably located under the seats of the car, as shown at B, Figs. 2 and 3. The cells of the battery are arrangedin groups, each group being carried on a tray, D, supported on suitable rollers. The lower outside panels, E, of the car are made removable, or

moval of the battery.

The terminals of the battery are connected through wires 0 G with the various sections of the motor, as shown in Fig. 4. The terminals of section 1 of the motor are shown at i of section 2 at t t*, and of section 3 at t '6. These terminals are connected by wires 0, c 0, c 0, and 0, respectively, with the terminals T, T, T, T, T and T of a suitable double switch, S, located on the platform of the car. If desired, a switch may be used on each platform. By partially rotating the contact-arm s of the are suitably hung or hinged to permit the re- 1 switch the circuit may be closed through terminals '1." T connecting with section 1 of the motor, as heretofore described. The current from the battery B thus flowing throughmne section of the motor, a certain power is developed, which, through the intermediate gearing, is transmitted to the driving axle or axles. By further rotating the contact-arm s the cireuit may be closed through terminals T T. Current now flows through sections 1 and-2 of the motor, thus developing greater power. If the full power of the motor is required, the contact-arm is turned farther, so that all the terminals of the switch are connected, thus allowing the current to flow through sections 1, 2, and 3 of the motor and developing its full power. It is evident that the switch may be turned in the reverse direction from that above described and the same results obtained.

Secured to the frame A A is an electro-magnet, F, the armature fof which is pivoted at f and connected with the brake-beams by rods M. This electro-magnet F is wound in several sections, (preferably three,) arranged in multiple are, which sections are connected by suitable wires, 9" a" r, with the terminals R It R of a switch, U, as shown. By means of the contact-arm a of this switch the circuit can be closed from battery B through one, two, or three of the sections of the eleetro-magnet F, thereby developing a proportional power, and drawing the brake-shoes accordingly.

From this description it will be apparent that any ordinary car now in service may be equipped with the apparatus embodying my invention at moderate expense, it only being necessary to raise the body of the ear sufficiently to permit the wheels to run below the car-floor. The hereinbefore-described apparatus being first put together and attached to the axles of the car, and the battery beingplaced in position, then by simply connecting said battery, motor, brake-magnet, and switches by suitable wires the car is ready for service, and may be run on any ordinary track.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The combination, with the axles of a car and a framing supported on said axles independent U of the car-body, of an elcctromotor wound in sections and supported on the framing, and connected by intermediate gearing with the axles, suitable wires connecting the sections of the motor with a battery located in the body of the ear, and a switch having two or more double terminals, whereby the circuit can be closed through one or more of the sections of the motor, all constructed, arranged, and operating substantially as shown and described, as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ALEXANDER H. BAUER.

\Vitnesses:

J. STEWART CARR, Taoams E. LECRAS. 

